Iseael kinney



(Model.)

. KINNEY.

METALLIC PENGING.

No. 812,884. Patented Peb'. 24, 1885.

lill-Hliiilllli Darren drames Farrar Ormes.

ISRAEL KINNEY, OF WINDSOR, ONTARIO, CANADA.

it'lETALLlC FENCENG.

SPECIFICATION forming part. oi Letters Patent No. 312,861i, dated February 24.-, 1885.

Application tiled January 23, 1885. (Model.) Patented in Canada October I), 1684, No. 20,3 E), and in England December' 5, 1884, No. 16,003'.

Be it known that I, ISRAEL KINNEY, a subject of the Queen of Great Britain, residing at Vindsor, Province of Ontario, Dominion of Canada, have invented new and useful Improvements in Sheet-Metal Fences, of which the following is a specilication.

My invention consists, essentially, in a panel or open metallic frame-work constructed from a single sheet of metal, said sheet being provided with several series of slits, the slits of each series beingforined in the same straight line and breakingjoints with the slits of the contiguous series, for which a patent has been granted in Canada October 9, ISSJf, No. 20,339. rIhe sheet thus prepared is then corrugated or bent in a direction substantially at right angles with the lines or series of slits a u, etc., as shown in Figure 3. An edge view of the plate thus slittcd and corrugated would give an outline similar to one-half of the complete sections of open-work. It will be seen that the width, shape, and arrangement are such that certain longitudinal portions of the plateare left in the same vertical plane, and these portions extend from end to end of the plate, substantially between the ends of two rows of slits, et or c'. Il", now, beginning at one end of the plate, the metal is folded over upon itself in the line ot' the first series ot' slits, a, there will be formed a series ot vertically-arranged openings similar in forni to those shown at the right hand of 3; and by again folding it in the opposite direction in the line of the next succeeding series ot' slits, a, a new and alternating series of openings will be added. rFhe corrugated and slittcd sheetis thus folded alternately in opposite directions, the successive folds beingA in the lines of the successive series of slits, as also shown in the right-hand port-ion of said Fig. 3, thereby forming an open lattice or frame work, the shape of each opening being governed by the peculiar form given to the corrugations above described. rlhc tlat sheet maybe folded in opposite directions alternately along the lines of the said slits, and themetal-then opened out, so that an open metallic frame-work ismade.A all of a single sheet of metal, without jointing, the metal itself presenting its edges perpendicularly, or nearly so, to the general surface ofthe sheet, thereby producing a very stift structure and of greater or less strength, dependent on the spaces between the successive series of slits being greater or less.

In carrying out my invention, Fig. l represents asheet of metal provided with a number of series of slits, as the sheet would appear in its original ilat condition. Fig. 2

shows the same when the sheet has been creased alternately in opposite directions along the slittcd lines and a part of the sheet opened out so as to form the panel or open metallic frame-worinwhich illustrates my invention.

AFig 3 shows the plate illustrated in Fig. 'l provided with longitudinal ilutings or corrugations formed substantially at right angles to the series of slits a (t, rbc., and having a portion of the sheet folded alternately in opposite directions along the lines of slits,where by it is caused to open out into its completed form. Fig. 4 illustrates a variation, the distance between the series of slits growing less and less from one end ot the sheet tothe other, thereby producing a finished panel or frame.- work which shall be stiiier and heavier at one edge than at the other. Fig. 5 illustrates a modiiied construction.

In carrying out iny invention, A represents a ilat piece ot' sheet metal, in which a a. a, c a a', etc., represent alternate series of slits made through the sheet A, the slits c breaking joints with the slits ct, as shown in Fig. l. The sheet is subsequently bent or folded alternately in opposite directions along each series of slits, as shown in Fig. 2. rIhis permits of the metal being then bent and opened out so as to forni the completed fabric as similar in appearance to that shown in Fig. 2. In practice I prefer to provide the sheet with corrugations A', as shown in Fig. 3, after the same has been slitted. It needs only then to be folded in opposite directions altcrnatel y along the slittcd lines, in order to give to it at once its finished condition, as also shown in Fig. 3.

In the finished panel or sheet there is presented an open frame-w rk of metal,without seam or joint, and the metal is presented edgey, and stiffness without break or joint.

-designed more especially for fences of various Wise toward the general surfaces of the panel 0r sheet, thereby giving to the frame-work great stiffness and strength. The stiffness and strength can be made greater or less according as the distance between the successive series a and a of slits is made greater or less,I for the thickness from face to face of the panel or sheet will be equal to the said distance.

It is apparent that the shapes of the open-V ings in the finished panel may be varied greatly by simply giving different shapes to the corrugations shown in Fig. 3, two forms beling there shown.

This invention admits of several obvious variations: Thus a post may be made by simply folding closer every alternate fold, thus causing the sheet to curl into a cylinder or cone, as shown in Fig. 5. So, also, as shown in Fig. 4, the-distance between alternate series of slits a and a may be madeY less and less, so as to produce a panelor sheet which shall be stiffer and stronger at one edge than at the other, and well adapted for gates, &c.; or the slits may be given an angular direction across the sheet from top to bottom, and also a Variety of Work may be produced, in all of which the same structure, substantially, is made, presenting the same feature of the metal presenting its edges toward the surfaces of the sheet, and soy making an open frame-work of great strength This is kinds, but is equally applicable for many other purposes-as, for instance, platforms, gratings, screens, &c.

It is apparent that in folding the metal it may be bent completely back upon itself or only partially so. In both the edges would be presented toward the faces of the finished panel-in the former ease at right angles, in the latter at a less angle.

The eut edges may be protected and the sheet strengthened by galvanizing, if desired, after the same is completed.

I have stated above that the sheet is slitted and then corrugated; but in some instances I first form the eorrugations and then out the slits. cumstanees may require.

Vhat I claim is- 1. A sheet-metal fabric formed of a single integral plate of metal, said fabric having openings Which are substantially polygonal, and the metal being bent or doubled upon itself in opposite directions alternately in lines coinciding with successive series of slits, to present the edges of the metal toward the faces of the fabric, substantially as described.

2. A sheet-metal fabric formed from a single integral metallic plate having a number of series of transverse slits, the slits of one series breaking joints with those of the adjacent series, said plate having longitudinal corrugations and being bent or. folded upon itself alternately in opposite directions, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ISRAEL KINNEY.

Witnesses: y

Jas. A. RUTHERFORD, .I os. L. CooMBs.

Either method may be followed as cir n 

